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Re: PATCH: flow_loops_find
- From: Richard Henderson <rth at redhat dot com>
- To: Franz Sirl <Franz dot Sirl-kernel at lauterbach dot com>, Josef Zlomek <zlomj9am at artax dot karlin dot mff dot cuni dot cz>, gcc-patches at gcc dot gnu dot org
- Date: Wed, 2 Jan 2002 17:50:05 -0800
- Subject: Re: PATCH: flow_loops_find
- References: <20011024173657.A5967@artax.karlin.mff.cuni.cz> <20011220174900.A2156@redhat.com> <200201022356.41110@enzo.bigblue.local> <20020102170353.C10659@redhat.com>
On Wed, Jan 02, 2002 at 05:03:53PM -0800, Richard Henderson wrote:
> I've not quite figured out what to do about this. I'd think we'd
> be able to induce this sort of failure in other targets, but I've
> not been able to do so for one reason or another. I have uncovered
> some places we failed to do cse or constant reconstruction properly
> though. ;-(
Ok, I've reproduced this on Alpha now too. It required that I
insert a REG_EQUAL note in one place that I was missing before.
(Which had been causing the address of I to be spilled to the
stack which is not exactly desirable.)
r~